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Forum: Math 2021-10-18, 14:59
Replies: 7
Views: 275
Posted By axn
Isn't the PRP certification based on Pieterzak? ...

Isn't the PRP certification based on Pieterzak?

https://www.mersenneforum.org/showthread.php?t=24654

IOW, been there, done that ?!
Forum: Software 2021-10-18, 11:17
Replies: 508
Views: 99,891
Posted By axn
I don't think this has anything to do with Intel...

I don't think this has anything to do with Intel vs AMD. Clearly, PFGW is not recognizing the big helper. Possibly some corruption due to line endings or "invisible" characters or some such?
...
Forum: Software 2021-10-18, 11:08
Replies: 508
Views: 99,891
Posted By axn
~/Desktop/pfgw_linux_4.0.1/distribution$ ./pfgw64...

~/Desktop/pfgw_linux_4.0.1/distribution$ ./pfgw64 -tc -l -hhelper.txt input.txt
PFGW Version 4.0.1.64BIT.20191203.x86_Dev [GWNUM 29.8]

Output logging to file pfgw.out
Primality testing...
Forum: MattcAnderson 2021-10-18, 08:40
Replies: 24
Views: 519
Posted By axn
I assume from the subsequent posts that you no...

I assume from the subsequent posts that you no longer consider the wikipedia statements as contradictory?
Forum: Software 2021-10-17, 13:04
Replies: 6
Views: 224
Posted By axn
Starting from 3.8.something, PRP + GEC is...

Starting from 3.8.something, PRP + GEC is available, so that is preferred due to the robust error checking.
Forum: Software 2021-10-17, 03:54
Replies: 6
Views: 224
Posted By axn
So the explanation is simple.Two different types...

So the explanation is simple.Two different types of tests, two different residues.

4.0 is doing a PRP test. LLR2 is apparently doing an LLR test (shock! LLR doing an LLR test?!)
Forum: mersenne.ca 2021-10-17, 03:48
Replies: 695
Sticky: mersenne.ca
Views: 93,598
Posted By axn
See...

See https://www.mersenneforum.org/showthread.php?t=27234
Forum: mersenne.ca 2021-10-17, 03:47
Replies: 14
Views: 516
Posted By axn
Thread moved to correct forum

Thread moved to correct forum
Forum: Software 2021-10-16, 13:23
Replies: 10
Views: 897
Posted By axn
2630 is a Haswell with base clock of 2.4 GHz....

2630 is a Haswell with base clock of 2.4 GHz. Haswell & Broadwell should have same theoretical max FLOPs/cycle. A straight extrapolation of clock speed says 512*2.0/2.4 = 425 sec on your processor...
Forum: Software 2021-10-16, 03:10
Replies: 10
Views: 897
Posted By axn
Hmmm... I thought AVX delivered 8/cycle and FMA3...

Hmmm... I thought AVX delivered 8/cycle and FMA3 delivered 16/cycle. Are you sure about the 32 number?
Forum: Forum Feedback 2021-10-13, 16:29
Replies: 8
Views: 321
Posted By axn
Might be a broken keyboard. Might be that...

Might be a broken keyboard. Might be that something like Ctrl is getting stuck and causing simple typing of a V to be registered as a paste

Can you try using a different keyboard?
Forum: Lounge 2021-10-07, 17:21
Replies: 199
Views: 4,816
Posted By axn
Give respect, get respect :missingteeth:

Give respect, get respect


:missingteeth:
Forum: Hardware 2021-10-06, 11:40
Replies: 22
Views: 4,322
Posted By axn
He's just giving the example of the simplest case...

He's just giving the example of the simplest case of a multi-word addition, i.e. two words. As can be seen from equivalent ARM & x64, this is the addition of two 2x64 integers.
Forum: Science & Technology 2021-10-05, 13:53
Replies: 273
Views: 22,680
Posted By axn
I think he meant combining COVID + flu vaccines...

I think he meant combining COVID + flu vaccines into a single "cocktail".
Forum: Lounge 2021-10-05, 09:25
Replies: 199
Views: 4,816
Posted By axn
https://www.smithsonianmag.com/science-nature/steg...

https://www.smithsonianmag.com/science-nature/stegosaurus-rhinoceros-or-hoax-40387948/
Forum: Lounge 2021-10-04, 14:37
Replies: 199
Views: 4,816
Posted By axn
Please leave the moderating to the moderators....

Please leave the moderating to the moderators. Thank you for your understanding.
Forum: Software 2021-10-03, 15:00
Replies: 77
Sticky: Prime95 30.7
Views: 5,105
Posted By axn
Observation: Stage 2 progress % splits start out...

Observation: Stage 2 progress % splits start out bigger (relative to 30.6) and progressively becomes smaller towards the end. Makes ETA calculations tricky.

[Work thread Oct 3 05:34] Conversion of...
Forum: Factoring 2021-10-03, 03:42
Replies: 6
Views: 357
Posted By axn
Ok. So you need a .xslm file, where you insert a...

Ok. So you need a .xslm file, where you insert a Module and define a public function.
Public Function Pminus1Probability(e as Long, tf as Integer, B1 as Long, B2 as Long) As Double

and then put a...
Forum: Factoring 2021-10-03, 02:31
Replies: 6
Views: 357
Posted By axn
Write it as a function that takes all the 4...

Write it as a function that takes all the 4 parameters and then returns a double. Then you just put it as a formula in a cell.

Are you using Excel (in Windows) or something else for your...
Forum: Factoring 2021-10-02, 16:31
Replies: 6
Views: 357
Posted By axn
You can write a macro for the full blown function...

You can write a macro for the full blown function in your spreadsheet tool of choice. Probably the easiest way (in the long run). The actual C code can be extracted from P95 source for reference.
Forum: CADO-NFS 2021-10-02, 03:24
Replies: 14
Views: 705
Posted By axn
div: primes less than 10000 div: found prime...

div: primes less than 10000
div: found prime factor = 3
div: found prime factor = 5
It performed trial division and found 3 & 5, completing the factorization. It never went to the more complex...
Forum: Lounge 2021-09-30, 02:01
Replies: 43
Views: 1,407
Posted By axn
So ... basically a mouse fart? :unsure:

So ... basically a mouse fart? :unsure:
Forum: Lone Mersenne Hunters 2021-09-29, 07:05
Replies: 1,962
Views: 263,847
Posted By axn
That doesn't diminish the success. What does...

That doesn't diminish the success. What does diminish it is the fact that this is a stealth P-1 factor. i.e. Had you done P-1 to the same bounds, it would have found the factor quicker.
Forum: Miscellaneous Math 2021-09-28, 14:24
Replies: 26
Views: 1,608
Posted By axn
Wrong. The expression is ambiguous. Hence there...

Wrong. The expression is ambiguous. Hence there can be more than one answer depending on how you interpret.

The ambiguity is due to two incompatible notation styles being used together. Here, the...
Forum: GPU to 72 2021-09-25, 01:48
Replies: 387
Views: 68,319
Posted By axn
When the report says "Updated: xxxx UTC", I...

When the report says "Updated: xxxx UTC", I expect all the results reported to primenet by xxxx UTC to be there. If that is not the case can you please give a "Data as of" time as well which...
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